Building a production-ready mobile application used to require a dedicated team of frontend, backend, and DevOps engineers. With modern AI tools, an individual developer can take an idea from concept to the App Store.
In a comprehensive new tutorial published on the freeCodeCamp.org YouTube channel, you will learn how to build and publish CodexGram, a full-featured, Instagram-style social media application. Moving well beyond superficial "vibe coding," this course emphasizes deliberate planning, reproducible design prompting, robust backend integration, and strict adherence to App Store review standards.
CodexGram is built using Expo (React Native) and TypeScript, styled with NativeWind (Tailwind CSS for React Native) and Expo’s liquid-glass Native Tabs. Key features include:
Authentication
Google and Apple sign-in powered by Clerk.Real-Time Backend & Storage
A reactive database, image uploads, and live updates using Convex.Core Social Feed
Photo uploads, captions, like/unlike toggles, threaded comments, and 24-hour stories with tap-to-advance and hold-to-pause interactions.Direct Messaging & Explore
Real-time 1-on-1 chats and a responsive grid for user discovery.Production Observability
Crash tracking, structured logging, and in-app user feedback via Sentry.Legal & Marketing Site
A responsive landing page, terms of service, and privacy policy deployed to Cloudflare Pages.
Watch the full course on the freeCodeCamp.org YouTube channel (3-hour watch).
